STM vs TSM vs UMC Stock Comparison

STMicroelectronics, Taiwan Semiconductor Manufacturing and United Microelectronics Prices as of Oct 23, 2026 Peers: Industry group
STM STMicroelectronics N.V.
$44.01 -16.1% 1M +74.2% 1Y
Market cap
$40.37B
P/E
86.6x
Revenue (TTM)
$13.10B
Div. yield
–
Semiconductor Manufacturing Technology
UMC United Microelectronics Corp
$18.87 -23.6% 1M +150.9% 1Y
Market cap
$46.91B
P/E
17.8x
Revenue (TTM)
$13.76B
Div. yield
–
Semiconductor Manufacturing Technology
4 wins

Head to Head

11 decided of 12

Taiwan Semiconductor Manufacturing leads on 7 of the 12 questions below (Taiwan Semiconductor Manufacturing 7, United Microelectronics 4). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionSTMTSMUMCLeader
Larger companyMarket capitalisation $40.37B $2.20T $46.91B TSM
Cheaper on earningsLower P/E, profitable companies only 86.6x 28.0x 17.8x UMC
Cheaper on forward earningsLower price / next fiscal year consensus EPS 34.1x 25.0x 17.0x UMC
Faster revenue growthRevenue growth, trailing twelve months +10.5% +34.4% +85.6% UMC
More profitableNet margin, trailing twelve months 3.6% 55.0% 19.1% TSM
Better return on capitalReturn on invested capital 3.9% 33.4% 10.6% TSM
Less leveragedLower net debt / EBITDA — -1.0x -0.9x TSM
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +74.2% +43.8% +150.9% UMC
Better 5-year returnAnnualised price return, 5 years +0.1%/yr +29.7%/yr +13.0%/yr TSM
Less volatileAnnualised volatility, 1 year 59.8% 39.1% 64.4% TSM
Higher overall scoreMean of the five percentile scores vs peers 40/100 74/100 72/100 TSM

Percentile Scorecard

STMTSMUMC

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisSTMTSMUMC
Valuation 80 #20 of 95 67 #32 of 95 83 #17 of 95
Growth 11 #83 of 93 87 #13 of 93 59 #39 of 93
Profitability 40 #55 of 91 92 #8 of 91 72 #26 of 91
Financial Health 40 #62 of 102 69 #32 of 102 55 #46 of 102
Shareholder Returns 29 #54 of 76 55 #35 of 76 91 #8 of 76
Overall 40 74 72
  • STM ranked among 104 companies in Semiconductors
  • TSM ranked among 104 companies in Semiconductors
  • UMC ranked among 104 companies in Semiconductors

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodSTMTSMUMCSPY
1 month -16.1%-6.4%-23.6% -1.0%
3 months -14.6%+3.6%-3.2% +2.9%
6 months -12.8%+3.9%+53.7% +6.4%
Year to date +69.7%+37.6%+140.1% +11.4%
1 year +74.2%+43.8%+150.9% +13.1%
3 years +10.6%+356.3%+153.6% +79.4%
3 years, per year +3.4%+65.9%+36.4% +21.5%
5 years +0.3%+266.1%+84.1% +67.7%
5 years, per year +0.1%+29.7%+13.0% +10.9%
10 years +446.0%+1,245.5%+920.0% +255.2%
10 years, per year +18.5%+29.7%+26.1% +13.5%

Risk

MeasureSTMTSMUMCSPY
Volatility, 1Y 59.8%39.1%64.4% 12.7%
Downside volatility, 1Y 61.0%39.1%56.8% 12.7%
Beta vs S&P 500, 1Y 2.832.121.77 1.00
Return / volatility, 1Y 1.241.122.34 1.03
Max drawdown, 5Y -67.2%-57.1%-57.3% -25.4%
From 52-week high -44.9%-13.9%-32.6% -2.5%
52-week high $79.91$485.91$28.01 $779.14
52-week low $21.20$275.06$7.02 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleSTMTSMUMC
P/E now vs peer median 84.4xmedian 41.5x 27.6xmedian 41.5x 17.5xmedian 41.5x
P/S now vs peer median 3.0xmedian 6.9x 15.2xmedian 6.9x 3.5xmedian 6.9x
EV/EBITDA now vs peer median —median 27.3x 20.3xmedian 27.3x 12.6xmedian 27.3x
P/FCF now vs peer median —median 35.6x 25.6xmedian 35.6x 24.0xmedian 35.6x
P/B now vs peer median 2.1xmedian 4.2x 10.7xmedian 4.2x 3.4xmedian 4.2x
PEG now vs peer median -1.61median 2.31 0.77median 2.31 25.61median 2.31

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsSTMTSMUMC
Revenue $13.10B $142.94B $13.76B
Gross profit $4.49B $91.71B $2.47B
Operating income $804.00M $80.08B $1.60B
Net income -$33.00M $74.55B $2.62B
Free cash flow – $84.59B $1.98B
R&D $2.11B $8.68B $609.13M
EPS (diluted) $0.50 $15.16 $1.07
Cash & equivalents $3.10B $98.36B $3.91B
Total debt $9.60B $22.36B $4.90B
Shares (diluted) 923.05M 5.19B 2.47B
Enterprise value $26.24B $1.83T $32.16B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricSTMTSMUMC
P/E 84.4x 27.6x 17.5x
P/FCF – 25.6x 24.0x
P/Operating cash flow – 25.6x 13.5x
P/S 3.0x 15.2x 3.5x
P/B 2.1x 10.7x 3.4x
P/Tangible book 2.3x 10.7x 3.4x
EV/EBITDA – 20.3x 12.6x
EV/EBIT 45.7x 25.9x 27.8x
EV/Revenue 2.8x 14.5x 3.2x
EV/FCF – 24.5x 22.4x
EV/Operating cash flow – 24.5x 12.6x
PEG (3Y EPS CAGR) -1.61 0.77 25.61

Growth

14 metrics
MetricSTMTSMUMC
Revenue growth (1Y) 10.5% 34.4% 85.6%
Revenue CAGR (3Y) 0.2% 25.3% 18.5%
Gross profit growth (1Y) 5.7% 47.2% 11.3%
Gross profit CAGR (3Y) -18.8% 29.2% -10.1%
Operating income growth (1Y) 28.0% 52.1% 9.6%
Operating income CAGR (3Y) -45.3% 32.0% -16.5%
Net income growth (1Y) -106.8% 57.8% 104.8%
Net income CAGR (3Y) -26.2% 33.5% -0.2%
EPS growth (1Y) -27.2% 80.8% 116.8%
EPS CAGR (3Y) -52.3% 35.6% 0.7%
Operating cash flow growth (1Y) – 27.1% 17.5%
Operating cash flow CAGR (3Y) – 21.4% -3.7%
Free cash flow growth (1Y) – 27.1% 447.4%
Free cash flow CAGR (3Y) – 21.4% -7.5%

Profitability

14 metrics
MetricSTMTSMUMC
Gross margin 34.3% 64.2% 18.0%
EBITDA margin – 71.4% 25.6%
Operating margin 6.1% 56.0% 11.6%
Pretax margin 5.7% 60.0% 30.3%
Net margin 3.6% 55.0% 19.1%
FCF margin – 59.2% 14.4%
Operating cash flow margin – 59.2% 25.6%
Return on equity 2.6% 37.3% 19.7%
Return on assets 1.8% 7.1% 13.2%
Return on invested capital 3.9% 33.4% 10.6%
Return on capital employed 3.7% 8.4% 9.7%
Asset turnover 0.5x 0.1x 0.7x
Cash conversion (OCF / net income) – 1.1x 1.3x
Stock comp / revenue 1.4% 0.0% 0.1%

Financial Health

11 metrics
MetricSTMTSMUMC
Debt / assets 6.7% 2.3% 3.5%
Debt / equity 0.1x 0.0x 0.1x
Net debt / EBITDA – -1.0x -0.9x
Debt / FCF – 0.1x 0.4x
Liabilities / assets 33.6% 31.4% 33.3%
Equity / assets 66.4% 68.6% 66.7%
Interest coverage – 191.8x 30.3x
Current ratio 2.5x 2.5x 2.2x
Quick ratio 1.5x 2.0x 1.6x
Cash ratio 0.8x 1.8x 1.2x
Altman Z-score 3.99 17.22 –

Shareholder Returns

7 metrics
MetricSTMTSMUMC
Dividend yield 0.8% 0.9% 2.1%
Net buyback yield -0.8% – –
Shareholder yield 0.0% 0.9% 2.1%
Payout ratio (earnings) – – –
Payout ratio (FCF) – – –
Dividend growth (1Y) – – –
Dividend CAGR (3Y) – – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusSTMTSMUMC
Forward P/E 34.1xFY2026 25.0xFY2026 17.0xFY2026
EPS, next fiscal year $1.29FY2026 $16.72FY2026 $1.11FY2026
EPS growth, next FY +143.4%FY2026 +59.4%FY2026 +109.4%FY2026
EPS growth, the year after +103.1% +39.4% -2.7%
Revenue, next fiscal year $13.78BFY2026 $177.84BFY2026 $8.57BFY2026
Revenue growth, next FY +16.8%FY2026 +47.4%FY2026 +12.7%FY2026
Revenue growth, the year after +18.0% +40.2% +25.6%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersSTMTSMUMC
Held by institutions 19.0% 14.8% 7.1%
Institutions holding 603 3,568 362
Change in shares held, QoQ +57.4% -0.6% +3.2%
Institutions buying 429 1,902 220
Institutions selling 108 1,292 109
Buyers to sellers 3.97 1.47 2.02

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

STMTSMUMC
STM 1.00 0.60 0.42
TSM 0.60 1.00 0.44
UMC 0.42 0.44 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, STM, TSM and UMC?

Taiwan Semiconductor Manufacturing (TSM) is the largest by market capitalisation: STMicroelectronics (STM) $40.37B, Taiwan Semiconductor Manufacturing (TSM) $2.20T, United Microelectronics (UMC) $46.91B.

Which stock is cheaper, STM, TSM and UMC?

United Microelectronics (UMC) trades on the lowest price-to-earnings ratio (STMicroelectronics (STM) 86.6x, Taiwan Semiconductor Manufacturing (TSM) 28.0x, United Microelectronics (UMC) 17.8x). On next year's consensus earnings, United Microelectronics (UMC) is cheapest (STMicroelectronics (STM) 34.1x, Taiwan Semiconductor Manufacturing (TSM) 25.0x, United Microelectronics (UMC) 17.0x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

United Microelectronics (UMC) grew revenue fastest over the trailing twelve months: STMicroelectronics (STM) +10.5%, Taiwan Semiconductor Manufacturing (TSM) +34.4%, United Microelectronics (UMC) +85.6%.

Which company is more profitable?

Taiwan Semiconductor Manufacturing (TSM) has the highest net margin (STMicroelectronics (STM) 3.6%, Taiwan Semiconductor Manufacturing (TSM) 55.0%, United Microelectronics (UMC) 19.1%). On return on invested capital, Taiwan Semiconductor Manufacturing (TSM) leads (STMicroelectronics (STM) 3.9%, Taiwan Semiconductor Manufacturing (TSM) 33.4%, United Microelectronics (UMC) 10.6%).

Which stock has performed better?

Over the past year United Microelectronics (UMC) returned the most: STMicroelectronics (STM) +74.2%, Taiwan Semiconductor Manufacturing (TSM) +43.8%, United Microelectronics (UMC) +150.9%. Over five years, Taiwan Semiconductor Manufacturing (TSM) compounded fastest (STMicroelectronics (STM) +0.1%/yr, Taiwan Semiconductor Manufacturing (TSM) +29.7%/yr, United Microelectronics (UMC) +13.0%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Taiwan Semiconductor Manufacturing (TSM) has been the steadiest (STMicroelectronics (STM) 59.8%, Taiwan Semiconductor Manufacturing (TSM) 39.1%, United Microelectronics (UMC) 64.4%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, STM, TSM and UMC?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Taiwan Semiconductor Manufacturing (TSM) leads on 7. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.